Jurchen (in Chinese: Nüzhen (女真 in pinyin: nü3 zhen1)) refers to an ethnic group in Manchuria and northern Korea, and their language, writing system. The Jurchen later became the Manchus.
... in 1380 and died near Zwolle (52 miles east-north-east of Amsterdam) in 1471. His paternal name was Hemerken or Hammerlein, "little hammer."
In 1395 he was sent to ...